Writing · Field notes

Field notes

Case studies and notes on AI security, drawn from the systems we build and run. No think-pieces — the work, and what it taught us.

Case study · Prompt injection

How we built a prompt-injection-hardened AI receptionist on Cloudflare's free tier

We dogfooded the attack we sell defense against: the threat model, the layered defenses, and an honest account of what we deliberately did not build.